Monet



(No Model.) 8 Sheets-Sheet 1.

Y M. H. SIMONET. GRINDING MACHINE FOR PAPER STOCK.

No. 484,056. Patented Oct. "11, 1892.

\ H 1 E V n al N 315. a

(No Model.) 3 sheets -sheet 2.

M. H. SIMONET. GRINDING MACHINE FOR PAPER STOGK.

} No. 484,056. Patented Oct. 11, 1892.

UNITED STATES PATENT, OFFICE.

MAXIME HUBERT SIMONET, OF QUINTIN, FRANCE.

GRINDING-MACHINE FORPAPER-STOCK.

SPECIFICATIONforming part of Letters Patent No. 484,056, dated October11, 1892.

Application filed October 24, 1890. Serial No. 369,223. (No model.)

To all whom it may concern.-

Be it known that I, MAXIME HUBERT SI- MONET, a citizen of the FrenchRepublic, and a resident of Quintin, Department of the Cotesdu-Nord,France, have invented certain new and useful Improvements in Grinding-Machines for Paper-Stock; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

The invention relates to grinding, cutting, or mixing machines forcomminuting or mixing any kind of materials-as, for instance, paperstock or pulp; and it consists in structural features and combinationsof parts, as willnowbefullydescribed,referencebeinghad to theaccompanying drawings, in which Figure 1 is a perspective View of amachine embodying my invention, the reducing-cylinder being shown open.Fig. 2 is a side elevation, and Fig. 3 a transverse section on or abouton line X X of Fig. 2. Fig. 4 is a top plan view of one of the grindingshells or plates detached, and Fig. 5 is an end elevation of the same.Fig. 6 is a top plan view of the reducing-rolls.

Similar letters indicate like parts wherever such may occur in the abovefigures of drawings.

A indicates the bed of the machine, provided with suitablebearing-standards A, A, and A for the journals of the reducing-rolls andthe driving-shaft.

B indicates the reducing-cylinder, Which-in cross-section has the formof a twin cylinder divided longitudinally, the upper half 17 beinghinged to the lower half I), which is seated on or secured to the bed A.Each of the twin cylinders contains a reducing-roll, (indicated Thebelt-shifter consists of a rod or standard K, provided at is upper endwith a sleeve in which works the belt-shifting rod J, provided atopposite ends with a handle and, as usual, with the shifting-loop I,that projects laterally from said rod, as shown in Fig. 1. Instead ofthe bevel-gear an ordinary gear may be used, as shown in Fig.2. Theupper half I) of the reducing-cylinder B may be locked to the lower halfin any convenient manner as, for instance, by means of a locking-bolt o,pivoted on a pin b that is secured to lugs 17 preferably on the lowerhalf I) of the reducing-cylinder B, each bolt carrying a nut V, so thatwhen said bolts are'swung up between the lugs b on the the upper half I)of said reducing-cylinder said nuts will have bearing on thelugs 12*, asshown in Fig. 2.

The reducing-rollsD and D are each pro vided with helically or spirallyarranged reducing ribs or blades 11, the number of which increases fromthe feed end of the rolls to the delivery end thereof, and in practicesaid reducing ribs or blades d areso arranged on the rolls D D as tointermesh, so that one roll drives the other in an opposite direction,as clearly shown in Figs. 1 and 6. In the reducing-cylinder are adjustably seated reducing plates or shells O, which conform to the innerconfiguration of the upper and lowerv half of the reducing-cylinder B,said shells being provided with reducing ribs or blades 0 for abouttwo-thirds of their length from the feed end thereof toward the deliveryend. These ribs or blades have a slight pitch relatively to the axis ofrotation of the rolls, so as to intersect the ribs or blades of saidrolls at a greater or less angle, according to the degree of pitch giventhem, thus not only performing the function of shears in conjunctionwith the ribs or blades on the rolls D and D, but also materiallyassisting in moving or conveying the material fed to the machine fromthefeed to the delivery end.

P is the feed-pipe in the upper half hot the reducing-cylinder, and E isthe dischargepipe. The shells or plates 0 are adjustable toward and fromthe reducing-rolls by means of adj usting-bolts c, that carry each a nutV, said bolts being secured to the shells or plates and by means ofset-bolts t, that work in screw-threaded openings formed in thereducing-cylinder, each bolt t carrying a handwheel T, so that thedegree of fineness to which the material is to be reduced may be readilyadjusted.

The shell C in the lower half of the reducing-cylinder is slottedlongitudinally, while the cylinder itself has a recess 19 Fig. 3, saidrecess and slot being on a plane intersecting the twin cylindersvertically or the reducing-faces of the rolls, and in said recess isseated a cutter-blade R, that is T-shaped in cross-section and isadjustable toward and from the reducing-faces of the ribs 61 on rolls DD by means of set-bolts u, that work in screw-threaded openings in thereducing-cylinder, each of said bolts carrying a hand wheel U. It willreadily be comprehended that the material fed to the machine isgradually reduced by reason of the arrangement of the reducing ribs orblades 02 on the rolls D and D, of which there are comparatively few atthe feed end of the machine, their nu mber increasing toward thedelivery end. The cutting or reducing blade R, extending longitudinallyof the reducing ribs or blades on the rolls, and the ribs or blades onthe shells 0, arranged at an angle to the longitudinal axis of therolls, assist materially in the first reduction of the coarse material,so that the machine may be driven at a comparativelyhigh speed withoutdanger of an overfeed and the consequent choking up.

I have stated that the shells C have reducing-faces covering but abouttwo-thirds of their area. In practice I'have found that'this issufficient, for the reason that the material after passing from betweensaid reducingfaces is operated upon by the greatest number of reducingribs or blades on the rolls and reduced thereby to the required degreeof fineness. The machine is also admirably adapted for use as a mixingor kneading machine for all sorts of materials, as will be readilyunderstood. 1

Having now described my invention, what I claim is- 1. In a machine ofthe class described, the combination, with a suitable bed and aninclosing casing mounted thereon and made in two sections pivotedtogether, said sections having the shape described, of reducing-rollsrevolubly mounted in' said casing and provided with spirally-arrangedribs or blades, the number of which increases from the feed end of therolls to the delivery end thereof, reducing-plates adjustably mountedwithin the casing and partaking of the shape of the sections thereof andbeing provided with blades having a pitch relatively to the axis of therolls, a longitudinal cutting-blade arranged vertically within the lowerpart of the casing and adapted to be adjusted relatively to the bladeson the rolls, a feed-pipe communicating with the interior of the casingat one end thereof, and a delivery-pipe communicating with the interiorof said casing at the opposite end of the latter, and means for rotatingthe rolls, as and for the purpose specified.

2. In a machine of the class described, the combination, with a suitablebed and an inclosing casing mounted thereon and made in two sectionspivoted together, said sections having the shape described, ofreducing-rolls revolubly mounted in said casing and provided Withspirally-arranged ribs or blades, the number of which increases from thefeed end of the rolls to the delivery end thereof, reducing-platesadjustably mounted within the casing and partaking of the shape of thesections thereof and being provided with blades having a pitchrelatively to the axis of the rolls, said plates being adapted to beadjusted toward and from the rolls independently of each other, alongitudinal cuttingblade arranged vertically within the lower part ofthe casing and adapted to'be adjusted relatively to the blades on therolls, a feedpipe communicating with the interior of the casing at oneend thereof, a delivery-pipe communicating with the said interior at theopposite end, and means for rotating the rolls, as and for the purposespecified.

In testimony that I claim the foregoing I have hereunto set my hand this2d day of July, 1890.

MAXIME HUBERT SIMONET.

Witnesses:

FREDERIC MATRAY, JOSEPH SALING.

